EPA Questions
Engineering Fundamentals Quiz
Test your knowledge on engineering principles and material properties with our comprehensive quiz. This quiz covers various topics like laws of physics, electrical systems, mechanical properties, and more, tailored for both students and professionals.
Prepare yourself for:
- Multiple-choice questions
- Real-world applications
- Technical drawings and principles
What is Plasticity
A materials ability to return to original shape after a force has been removed
A materials ability to retain its new shape after a force has been removed
What is Boyles law?
Pressure and volume are inversely proportionate to each other at a constant temperature
Temperature and volume are proportionate to each other at constant pressure
Pressure and temperature are proportionate at a constant volume
Volume and temperature and inversely proportionate
What is Bernoulli's principle?
Low pressure, low velocity air flows below the wing whilst high pressure, high velocity air flows over the wing
High pressure, low velocity air flows below the wing whilst low pressure, high velocity air flows over the wing
Low pressure, high velocity air flows below the wing whilst high pressure, low velocity air flows over the wing
High pressure, high velocity air flows below the wing whilst low pressure, low velocity air flows over the wing
What is this metallic crystal structure called?
Face-centered cubic
Body-centred critical
Hexagonal close packed
Which is a series circuit?
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What is ductility?
A materials ability to withstand force
How strong a material is
A materials ability to be worked into a new shape
How bendy a material is
Examples of ductile metals?
Steel
Aluminium
Copper
Tungsten
Tin
Titanium
What is an RCD?
Residual-Current Device
Residual-Current Detector
What does an RCD do?
Detects and prevents short circuits and circuit overloads
Detects and prevent short circuits
Which is a parallel circuit?
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What is material hardness?
A materials mass
A materials ability to withstand directional forces
A materials ability to withstand deformation
Example of hard metals?
Tungsten
Copper
Gold
Where can the FG and BE figures be found?
In the gate card
On the drawing
Where can the J figure be found?
In the gate card
On the drawing
What is Charles law?
Temperature and volume are inversely proportionate at a constant pressure
Pressure and volume are directly proportionate
Pressure and volume are inversely proportionate at a constant pressure
Temperature and volume are directly proportionate at a constant pressure
What is Newtons 2nd law?
F=MA
F=M/A
M=A
A=M/F
What voltage does a single phase system work at?
415V
230V
320V
250V
What voltage does a 3-phase system work at?
415V
230V
320V
250V
What is shear strength?
A materials resistance to tension
A materials ability to withstand deformation
A materials ability to withstand directional force
What is tensile strength?
A materials resistance to tension
A materials ability to withstand deformation
A materials ability to withstand directional force
What is yield strength
A materials resistance to tension
A materials ability to withstand deformation
A materials ability to withstand directional force
How do you calculate resistance on a parallel circuit?
Rt= 1/R1+1/R2+1/R3...
Rt= R1+R2+R3...
What is an MCB?
Miniature circuit breaker
Miniature circuit board
Mega circuit breaker
Mega circuit board
Where can Charles law be found in a gas turbine?
The front fan to compressor section
The compressor section to combustor
The combustor to turbine section
Where is AC used?
Batteries
Chargers
Almost every electrical appliance
Where is DC used?
Batteries
Chargers
Almost every electrical appliance
What is this metallic crystal structure?
Body-centered cubic
Hexagonal close packed
Face-centered cubic
What does a Zeus book contain?
Reference guides of data and charts e.g. Imperial to metric
Standards
Build Instructions
Which is 3rd angle projection
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What is the coanda effect?
The effect where high pressure, low velocity air flows under the wing whilst low pressure, high velocity air flows over the wing
The effect which describes air sticking to an aerofoil
How do you calculate resistance in a series circuit?
Rt= 1/R1+1/R2+1/R3...
Rt=R1+R2+R3...
What is hardening?
When a metal is heated below recrystallisation temperature then left to slowly cool in a furnace
When a material is heated to recrystallisation temperature and left to cool in ambient air
When a metal is heated above recrystallisation temperature then cooled in oil water or brine
What is a converging section?
An area that begins to narrow
An area that begins to widen
What is annealing?
When a metal is heated to its melting point and cooled in air
When a metal is heated above recrystallisation temperature then left to slowly cool in a furnace
When a metal is heated below recrystallisation point and cooled in oil, water or brine
Why is annealing done?
To increase ductility
To increase strength
To increase hardness
To increase chemical resistance
What does this symbol mean?
Diameter
Battery
Transistor
Resistor
What does a resistor do?
An electronic device that limits flow of current
An electronic device that turns a circuit on and off
What is Newtons 3rd law?
F=MA
Every action has an equal and opposite reaction
A body at rest will remain at rest until an unbalanced force is applied
What does this symbol mean?
Resistor
Transistor
Capacitor
What does a transistor do?
Amplifies or switches electrical signals & power
Produces power
Limits current flow
What is hot working?
Working below recrystallisation temperature
Working above recrystallisation temperature
What does this symbol mean?
Resistor
Capacitor
Transistor
Switch
What does a capacitor do?
Transfers electrical energy
Stores electrical energy
Limits electricity flow
What are some fault finding techniques for a circuit?
Senses
Half split method
Use of a multimeter
Unplug and re-plug the circuit
What is pascals law equation?
Force=Mass x Acceleration
Pressure= Force/Area
Pressure= Force x Area
Force= Pressure/ Mass
What does JES stand for?
Jims engineering standard
Joint engineering specification
Joint engineering standards
What is this metallic crystal structure?
Face-centered cubic
Body-centered cubic
Hexagonal close packed
Where can titanium based components be found in a gas turbine?
Pipes
Fan blades
Compressor blades
What is a composite?
A mixture of 2 or more metals
A mixture of 2 or more materials
What is an alloy?
A mixture of 2 or more metals
A combination of 2 or more materials
What is Newtons 1st law?
Every action has an equal and opposite reaction
F=MA
A body at rest will remain at rest until an external force is applied
Which is 1st angle projection?
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What checks should be done prior to crane handling?
Check serviceability
Check safe working load
Lift the component to test the weight
Assess the load size, shape and weight
Check the movement path is clear
Check your own license to operate
Lift the component above head height and leave it
How many levels of FOD are there?
2
3
4
5
What are the levels of FOD
FOD near
FOD alert
FOD away
FOD aware
FOD critical
FOD danger
What does HASAWA mean?
Health and safety at work act 1974
Health and safety at home act
Control of substances hazardous to health
What is normalising?
When a metal is heated and cooled in oil water or brine
When a material is heated beyond melting point and left to cool
When a material is heated below melting point and left to cool by air
What properties does normalising give?
Hardness
Increased mass
Corrosion resistant
Increased ductility
What is the Ohms law equation?
V=IR
V=R/I
R=IV
What is the unit of voltage?
Volts
Ampere
Ohms
Jouls
What is the unit of resistance
Volts
Ampere
Ohms
Jouls
What is the unit of current?
Volts
Ampere
Ohms
Jouls
What is material elasticity?
A materials ability to withstand force
A materials ability to deform and return to normal shape and size after load has been removed
A materials ability to retain new shape
What is the tempering?
When a metal is heated below its melting point and left to cool by air
When a metal is heated beyond recrystallisation temperature and left to cool in a furnace
When a metal is heated and cooled by oil water or brine
What properties does tempering give?
Increase brittlesness
Increase hardness
Decrease brittleness
Increase strength
How many times can the cutting tip be used before needing to be changed in fantrack bore?
1
2
3
4
How often does the fantrack filter need to be changed
Every 2 runs
Every 3 runs
Every 4 runs
Every 5 runs
Advantage of using hydraulic fluid system over pneumatic?
Cleaner
Easier to maintain
Capable of producing more force
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